2.5" header to 2.25" what to do?
Damn I just dropped $500 on a speedstate exhaust, but its a 2.25" piping, if I get a 2.5" 4-1 header will it cause trouble? and should I get get a 2.5" carsound cat or a 2.25" carsound cat?
thankx guys, my knowledge of exhausts has doubled in the last few days thanks to you guys!
thankx guys, my knowledge of exhausts has doubled in the last few days thanks to you guys!
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Joined: May 2001
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From: Rancho Palos Verdes, CA
Vehicle: 2008 Toyota Prius 2006 Suzuki SV650S
i would go with the same diameter to the cat (2.5) then drop it down to 2.25 for the speedstate cat back. That should be fine.
In other words...get the headers...and a 2.5" cat.
In other words...get the headers...and a 2.5" cat.


